-Drinking a cup of coffee before working out stimulates metabolism, causing faster burning of calories. =and  it helps to burn calories faster / and burns calories faster.
But it made =makes me stay awake whole all night.= all night.
But it made me stay awake the whole night / all night.
-My purpose of learning English is to get assigned to a better department in the firm.
And to be able to deal with contracts with foreign companies.
Fluency in English is now common diffrentiation =a common differential / distinct strategy for new employees, but still always =is still always effective.